diff --git a/configs/wtk_defconfig b/configs/wtk_defconfig
index cf00ac5..f98be1f 100644
--- a/configs/wtk_defconfig
+++ b/configs/wtk_defconfig
@@ -11,5 +11,6 @@
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_SNTP=y
 CONFIG_CMD_EXT2=y
+# CONFIG_PCI is not set
 CONFIG_LCD=y
 CONFIG_OF_LIBFDT=y